A nutritionally adequate lunch or a nutritionally adequately breakfast shall contain, as a minimum, each of the following food components in the amount indicated as modified for age level pursuant to Section 15561:
(a) One-half pint of fresh, fluid milk as a beverage or on cereal or used in part for each purpose.
(b) Two ounces of lean meat, poultry, fish, or cheese; or one egg; or one-half cup of cooked dry beans or peas, or 4 tablespoons of peanut butter; or any equivalent quantity of any combination of the above listed foods or acceptable alternates. To be counted in meeting this requirement, such foods shall be served as a main dish or as part of a main dish plus one other menu item.
(c) Three-fourths cup of two or more vegetables or fruits, or both. Full-strength vegetable or fruit juice may be counted to meet not more than one-fourth cup of this requirement.
(d) One slice of whole grain or enriched bread; or an equivalent serving of cornbread, biscuits, rolls, tortillas, or acceptable alternates, made of whole grain or enriched flour or meal; or three-fourths cup or one-ounce serving of whole grain cereal or enriched or fortified cereal; or any equivalent quantity of any combination of these foods.
(e) One teaspoon of butter or fortified margarine.